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Reload this Page Bad vibration on 1450
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  #1  
Old 06-09-2016, 12:52 PM
Dostuki Dostuki is offline
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Default Bad vibration on 1450
It started out as a light rattle about the last 2 or 3 times mowing. Now it is a full out vibration that shakes the whole tractor. The motor mounts were replaced a few years ago, and I've pulled the inspection covers off and can't see where anything is loose or out of adjustment.
It starts easy and does not smoke. I'm guessing it must be something internal in the motor, but I am not sure where to start. As it is now, I am not comfortable running the tractor anymore.
Any help would be greatly appreciated.
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  #2  
Old 06-09-2016, 01:17 PM
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olds45512 olds45512 is offline
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Did you confirm all the engine mounting hardware is tight? The oil pan bolts like to loosen and fall out.
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  #3  
Old 06-09-2016, 01:22 PM
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Driveshaft running true?
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Old 06-09-2016, 03:16 PM
Yosemite Sam Yosemite Sam is offline
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There are WAY too many things to check on a Quiet Line before assuming that something is wrong inside the engine.

I would start by (as mentioned) checking the oil pan bolts and motor mounts then the front pto (just because you're already there) then the drive line.

If it's as bad as you say, it shouldn't be hard to find, but you're probably not gonna find it without getting your hands dirty.
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Old 06-09-2016, 06:50 PM
twoton twoton is offline
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Quote:
Originally Posted by Yosemite Sam View Post
.....then the front pto.....
Yosemite Sam, Are you suggesting that this could be the source of the vibration?
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Old 06-09-2016, 09:00 PM
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bocephus1991 bocephus1991 is offline
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Does your 1450 have a clutch disconnect?
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Old 06-09-2016, 10:34 PM
Bob95065 Bob95065 is offline
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Quote:
Originally Posted by Dostuki View Post
It started out as a light rattle about the last 2 or 3 times mowing. Now it is a full out vibration that shakes the whole tractor. The motor mounts were replaced a few years ago, and I've pulled the inspection covers off and can't see where anything is loose or out of adjustment.
It starts easy and does not smoke. I'm guessing it must be something internal in the motor, but I am not sure where to start. As it is now, I am not comfortable running the tractor anymore.
Any help would be greatly appreciated.
When you replaced the motor mounts did you do the engine cradle mod? If not the bolts probably backed out.

Check your rag joints front and rear too. There is a self-centering bushing at either end of the driveshaft that could be the culprit too but not likely. Pull the tunnel cover and see if the driveshaft is spinning true.
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Old 06-12-2016, 01:50 AM
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Does your 1450 have a clutch disconnect?
A what??
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Old 06-12-2016, 08:29 AM
twoton twoton is offline
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A what??
NOS 428 Cold Start Disconnect Clutch Kit PN/ 650-660 759-3534 or 190-428-100
Fits 682 782 784 1710 1711 1712 1810 1811 1812 and others depending on serial number

http://ccspecialties.org/clutch_driveline_rearend.html
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Old 06-12-2016, 09:51 AM
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Not that one,basically the disconnect on a 1450 is adding a gear drive clutch to a hydro.
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